Transmission for a marine jet drive

Details Transmission for a marine jet drive Transmission for a marine jet drive

1974-07-10

1976-11-30

Blix, Trygve M.

74373, B63H 1102

Patent

active

039942546

ABSTRACT:
The invention contemplates a multiple-speed transmission for coupling an engine to the impeller of a marine jet drive, such that an overdrive connection powers the jet drive under operating conditions up to a predetermined upper limit of cruising speeds and such that a reduced drive, for example a direct-drive connection, is automatically established for jet-drive speeds in excess of the cruising conditions. A simple illustrative transmission is described in detail, involving use of transmission lubricant as the actuating medium employed for hydraulic actuation of the engaged condition of the overdrive, all without impairing full circulation of the lubricant to and throughout the transmission, regardless of the engaged or disengaged condition of the overdrive.

REFERENCES:
patent: 2532945 (1950-12-01), Robinson
patent: 2590231 (1952-03-01), Chilton
patent: 3019666 (1962-02-01), Brennan et al.
patent: 3164036 (1965-01-01), Lamburn et al.
patent: 3532068 (1968-10-01), Lamburn

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